December Weather in Granger, United States

Last updated: June 24, 2025

In December, the average temperature in Granger, United States hovers around 1°C (34°F), but be prepared for a range: temperatures can dip to a brisk -21°C (-6°F) or climb to a mild 17°C (63°F). Expect roughly 62 mm (2.4 in) of precipitation spread over 10 days, with an average humidity of 86%, making the air feel quite chilly and damp.

December Temperature in Granger

In December in Granger, the average temperature is 1°C (34°F). The maximum can reach 17°C (63°F) and the minimum can be as low as -21°C (-6°F). Be prepared for a wide temperature range when traveling, so pack accordingly!

December Weather in Granger: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Granger, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Granger, December typically has an average temperature of 1°C (34°F), with highs reaching up to 17°C (63°F) and lows dropping to around -21°C (-6°F).

Data source: Temperature data for Granger generated using information from the Copernicus Climate Change Service.

December Precipitation in Granger

In Granger in December, the total precipitation amount is 62 mm (2.4 in) over a period of 10 days.

December Precipitation Trends in Granger

The chart displays monthly precipitation patterns in Granger, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Granger, December typically receives around 62 mm (2.4 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Granger

In Granger in December, humidity is 86%. With an average temperature of 1°C (34°F), this humidity feels like a chilling embrace, making outdoor adventures brisk and invigorating but challenging for travel.

December Average Humidity in Granger

This chart illustrates the average monthly humidity levels in Granger, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Granger is approximately 86%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Granger

In Granger in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Granger, you can check the information here.

Maximum UV Index Levels in Granger for December

The chart shows the monthly maximum UV Index (UVI) for Granger in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Granger typically reaches 3, which falls under the moderate exposure category.

Data source: Granger December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How December Weather in Granger Compares to Other Months

Weather in Granger varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Granger, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Granger, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (28°F)	73 mm (2.9 inches)	85%	moderate
February Weather	-2°C (29°F)	77 mm (3.0 inches)	85%	moderate
March Weather	4°C (39°F)	98 mm (3.9 inches)	86%	high
April Weather	9°C (48°F)	104 mm (4.1 inches)	87%	very high
May Weather	16°C (61°F)	147 mm (5.8 inches)	81%	very high
June Weather	22°C (72°F)	131 mm (5.1 inches)	82%	very high
July Weather	24°C (75°F)	115 mm (4.5 inches)	81%	very high
August Weather	22°C (72°F)	105 mm (4.1 inches)	79%	very high
September Weather	19°C (67°F)	81 mm (3.2 inches)	78%	very high
October Weather	13°C (55°F)	132 mm (5.2 inches)	81%	high
November Weather	4°C (40°F)	77 mm (3.0 inches)	89%	moderate
December Weather	1°C (34°F)	62 mm (2.4 inches)	86%	moderate